Department of

# Mathematics

Seminar Calendar
for events the day of Monday, December 16, 2019.

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events for the
events containing

Questions regarding events or the calendar should be directed to Tori Corkery.
    November 2019          December 2019           January 2020
Su Mo Tu We Th Fr Sa   Su Mo Tu We Th Fr Sa   Su Mo Tu We Th Fr Sa
1  2    1  2  3  4  5  6  7             1  2  3  4
3  4  5  6  7  8  9    8  9 10 11 12 13 14    5  6  7  8  9 10 11
10 11 12 13 14 15 16   15 16 17 18 19 20 21   12 13 14 15 16 17 18
17 18 19 20 21 22 23   22 23 24 25 26 27 28   19 20 21 22 23 24 25
24 25 26 27 28 29 30   29 30 31               26 27 28 29 30 31



Monday, December 16, 2019

11:15 am in 245 Altgeld Hall,Monday, December 16, 2019

#### 2-parts of class groups in thin families of quadratic fields

###### Djordjo Milovic   [email] (University College London )

Abstract: The study of 2-parts of class groups of quadratic number fields goes back to Gauss. While he did much work to understand the structure of class groups, Cohen and Lenstra provided a heuristic framework for understanding the average behavior of these groups. We will present results on the distribution of 16-ranks of class groups in certain natural families parametrized by prime numbers, and we will discuss how these results fit into the framework of the Cohen-Lenstra heuristics.

5:00 pm in 241 Altgeld Hall,Monday, December 16, 2019

#### No talk this week!

Abstract: See you next semester!